Valve.



H. FROEHLICH.

VALVE.

APPLICATION PILPD APR.17,1912

Wilma/aoco www HENRY FROEH'LICH, or CENTRAL AGUIRRE, .Bonito moe.

VALVE.

Specification of Letters Patent. Application inea apra l17, 1912,. serial mi. 601,454.

Patented Mar. 3l, i914.

To all whom it may conc-em Be it known that ll, HENRY FRoEHLIoH, a citizen of the United States, residing at Central Aguirre, Gruayama, Porto Rico, have invented new and useful 'Improvements in Valves, of which the following 1s a speciication.

rlhis invention relates to improvements in globe valves, and one of my main vobjects of the-invention is to so construct a valve of this character, that steam can be admitted -to press the valve disk against its seat so as to assure a fluid tight joint.

In carrying out my invention, it is also my aim to make this valve fool-pinolil against any disarrangement of construction between the valve disk and spindle, which danger will not allow the practice of having the pressure against the valve disk in the ordinary constructed valve now in use.

A further object of my invention is to have the valve when in open position entirely out of the way so as to permit free and unobstructed passage of the steam or fluid and to have. the valve disk independent-ly rotatably mounted on its spindle so that it may freely rotate on its movement toward away :trom its seat, thus continually ini. new bearing in the vali/'fe seat to prevent leakage of the valve.

With these and other objects in view, which will appear from the following description, my invention also consists in certain novel and improved features of construction hereinafter more fully set forth.

In the accompanyingjdrawing: the figure is a sectional side elevation illustrating the valve in a closed position, the open position of the valve being indicated by dotted lines.

Referring more particularly to the drawings, A designates the valve body or casing having an inletandan outlet 1 and 2, respectively. The. valve casing or body 1 is provided with a centrally bored, interiorly screw threaded nipple 2 having its upper end exteriorly screw threaded and adapted to receive the interiorly screw threaded cap 3, through which extends a spindle 4 having a screw threaded portion adjacent its lower end adapted to engage the interiorly threaded portion of the nipp'le 2', and provided at its upper end with a hand wheel 4', while the bottom of the said valve casing or body is fitted with a removable plug 5 which is formed to provide a centrally located, in-

wardly extending guide sleeve 6, the purpose of which will be more fully hereinafter described.

Arranged within the valve casing o-r body and formed integral therewith isa partition 7 disposed between .the inlet and outlet and formed to provide a circular tapered-passage 8, which forms a valve seat for the valve 9. The valve proper consists of a -disk 10 having its periphery tapered as at 11 to correspond with the tapered passage or seat 8 formed in the partition 7 so as to provide an absolute fluid-tight joint when lthe valve is closed. The disk 10 is rov-ided -with a centrally arranged, upward y extending boss l2 which is centrally bored to receive the lower end of the spindle 4. The interior diameter of the boss 12 is slightly greater than the diameter of the lower end of the spindle 4 to permit free and independentrotation of the valve proper thereon, pins `15 Vbeing Passed transversely through the said boss and engaging the annular groove of the spindle 4 so as to operatively connect the valve with the spindle. The under side of the valve proper is provided with a circular stem 16 disposed in direct axial alinement with the spindle 4 and adapted to slide vertically within the guide sleeve 6 to retain the valve proper in exact center in its movement toward and away from the seat,

the upper end of the said guide sleeve 6 and the plug 5 forming a rest or a support Jfor the valve when in its open position.

The interior diameter of the guide sleeve 6 is slightly greater than the diameter of the stern 16 so as topermit the free and independent rotation of the valve proper upon its spindle, it being readily apparent that the valve proper, being freeto rotate upon its spindle, constantly finds a newlbearing against its seat on every closing operation and thereby prevents leakage of the valve by cutting" grooves in the seat, which so often occurs when valves have a permanent bearing against4 their seats. The lower end of the guide sleeve 6 is provided with passages 17 arranged diametrically opposite each other and adapted to permit water of condensation or any other substance which might collect in the saidv sleeve while the valve is closed, to escape when the valve is moved down to an open. position.

As shown in the drawing, it will be obvious that when the valve proper is moved down to an open yosition, the upper face of the valve being disposed slightly below the plane of lthe inner walls of the inlet and outlet openings of the casing, the valve lwill be so arranged to be entirely out o f the way to permit a free and unobstructed passage for the steam or other fluid.

The lower end of the stem 16 is provided' with a transverse slot 18 to ermit the insertion of any suitablegtool a ter the plug 5 has been removed, for the purpose of regrinding the valve when desired.

It is also evident that by having the valve and spindle relatively 'movable axially of the spindle that if the valve proper should fail to properly seat itself on limit of the upward movement of its spindle the steam pressure below the valve will force thesaid valve upwardly against its seat, and thus assure a perfectly fluid-tight joint.

From the foregoing description taken ii'. connection with the accompanying drawing,

the advantages of construction and opera-` tion will be readily apparent to those skilled in the art to which the invention appertains, and while I have shown the rinoiple of operation together with my evice, which I now consider the preferred form thereof, I desire to have it understood that-fthe device shown is merely illustrative and that changes may be made when desired as `are `a valve casing having an inlet and outlet,

and a valve seatjarranged therebetween, a valve movable towardy and away from said seat and provided with a central depending valve stem, a removable plug closing the bottorn of said casing andprovided with` an inwardly directed guide sleeve forsaid stem and terminating in a plane with the upper end of said plu and below the inner walls of 'said inlet an outlet passages forming va lseat for the valve `when in open'position, said valve being movable downwardly to ,an open vposition and ada ted to rest upon said sleeve and plug elow the inner walls of the said inlet and outlet lso as to permit a free and unobstructed passage for the steam or other fluid, and means for operating said valve.

In testimon whereof I aiix mysignature in presence o two witnesses.

HENRY FRQEHLICH.

Witnesses:

FRED L. WERNER, FRANCISCO RosALY. 

